The homegrown urban artist's newly-issued Jive/Columbia single Champion, which features Chris Brown, has opened up a lead of around 6,000 sales over Price Tag by Jessie J featuring BoB, according to OCC data. J's Island/Lava single debuted at number one last Sunday having become part of the so-called on air/on sale revolution in which tracks are released commercially almost as soon as radio stations start playing them.

Both Jessie J and Chris Brown could end up having two singles in ...